perhaps I shouldn't be so harsh on him, but Talib:

Cook is at again, and the Rams defense gave up big yards to him, AND allowed the Raider offense to convert twice out of long down and distances.

The last one to Cook was a fail by Talib to contain and help tackle Jared Cook.
Talib overshoots helping take down Cook, and instead ends up overrunning the scrum.

And there goes Cook fighting off undersized Rams and turning it upfield and plunging across the 1st down markers.
It truly gave life to the Raiders again, and this may a problem going forward.
To my eye, our corners, safeties, and lb are giving up some size. Perhaps Jared Cook is just that much larger than most of others on the field, but the guy made the backend of our defense look minuscule